Why does breakfast give us energy?
Show answer & explanation
Answer: Replenishes glucose after fasting
Replenishes glucose after fasting ✓ — Correct! After sleeping 8+ hours without eating, your blood glucose and glycogen stores are depleted. Your brain uses about 120g of glucose daily and has no storage - it relies on constant blood supply. Breakfast replenishes blood glucose, primarily from carbohydrates. This provides immediate fuel for brain function, physical activity, and cellular metabolism. Without breakfast, you may feel tired and have poor concentration!
Protein activates brain — Wrong. While protein is important for sustained energy, it's not what 'activates' the brain. Your brain primarily runs on glucose from carbohydrates. Protein takes longer to digest and is more important for satiety and maintaining steady energy levels.
Wakes up digestive system — Wrong. Your digestive system doesn't 'wake up' - it's always functioning. What breakfast does is provide fuel (glucose) that was depleted during overnight fasting. The energy feeling comes from restoring blood sugar levels, not from awakening digestion.
More Food & Nutrition questions
- Parmigiano Reggiano is made with milk, salt, and rennet only, so why can older pieces taste more savory or spicy without extra seasoning?
- Why does a Parmigiano Reggiano wheel wait until at least 12 months for the official selection mark instead of being fully approved when it is molded?
- How can Parmigiano Reggiano keep developing flavor after its starter bacteria have done their early acid-making job?
- A young Parmigiano Reggiano can taste milky, while older wheels lean nutty, spicy, or broth-like; what pushes the flavor away from plain dairy?
- Why does aging Parmigiano Reggiano from 12 months to 36 months not matter much for removing lactose?
- Why can older Parmigiano Reggiano turn crumblier and grainier instead of simply becoming a harder block?